Trolley-wire suspension.



No. 662,595. Patented NOV. 27,1900.

J. W. HAYNEs.

TROLLEY WIRE SUSPENSION.

(Applicq-tion filed Mar. 10, 1900. 1

(No Model.)

UNITED STATES PATEN FFICE.

JOHN W. HAYNES, OF MANCHESTER, CONNECTICUT.

TROLLEY-WiRE SUSPENSlN.

SPECIFICATION forming part of Letters Patent N 0.. 662,595, dated November 27, 1900.

Application filed March 10, 1900. Serial No. 8,164- (No model.)

To all whom it may concern.-

Be it known that I, JOHN W. HAYNES, a citizen of the United States, and a resident of South Manchester, in the county of Hartford and State of Connecticut, have invented a certain new and useful Improvement in Trolley-Wire Suspension, of which the following is a specification.

My invention relates to the class of devices used for supporting a trolley-wire from posts or other fixed parts; and its object is to pro- Vide means for supporting the Wire which will not be liable to become loose in use or wear. One form of mechanism by means of which this object may be attained is illustrated in the accompanying drawings, in which Figure 1 is a detail View of the outer end of a bracket-arm used to support a trolley-wire and of a hanger broken away to show construction. Fig. 2 is a view in horizontalsection through the hanger and showing the cap lock.

In the accompanying drawings, the letter a denotes a bracket-arm or like means of support for a trolley-wire b, these being of any convenient form or arrangement.

The hangercincludes the insulating tubular socket d, with clamp-screw cl for securing it in place, the yoke csupporting the bottom plate f, which is concaved on the bottom and shaped to receive the cone 9 and cap h of the cap-and-cone insulation.

The above parts are of the well-known form, and the threaded shank h, fast to the cap h, extends into a threaded socket in the ear 2' as the means of attaching the ear and the wire 19, supported by it, to the hanger.

The cap-and-cone insulation is for many reasons the best form of insulation; but a se rious defect in its construction has driven it out of use to a considerable extent. This defeet consists in the liability of the cap to unscrew from the car by changes in temperature and the vibrations to which the parts are subjected in the ordinary use of the structure. This unscrewing of the parts results in their separation and the temporary throwing out of service of the line, particularly if this accident occurs on a curve. In any event it is a fault which requires prompt remedy to pre vent a breakdown in the service. My improvement removes this objection completely by providing simple, cheap, and convenient means for locking the cap in place after it has been screwed firmly up to hold the several parts in proper relative position, as illustrated in Fig. l of the drawings.

My improvement is embodied in the structure by providing in the cap it sockets it, which are preferably perforations extending through the cap depthwise near its periphery, as they can be easily formed in molding the cap without any increase in the cost of production. In addition to these sockets the latch Z is supported on the hanger preferably by loosely attaching a loop to one of the branches of the yoke 0, so that the latch may be out of the way in assembling the parts, and the hooked end l of the latch can be inserted into a socket 7c in the cap and thus anchor it firmly in place. When the sockets are formed as shown, they also form anchor-holes for a spanner, which is the most convenient device for securing it in place. It is obvious that other forms of latch or bolt devices may be used in place of this specific form of latch without departing from my invention or requiring the exercise of any but the skill of the art in producing equivalents, and such forms are intended to be used as within my invention,

The material of which the lock or latch is formed is not important, but it may evidently be of iron wire of suitable gage, as to the form shown, as a cheap and readily-obtained material.

A thorough test of this invention on a trolleyline in continuous service has been made and the operativeness shown beyond doubt. The defect in this approved form of insulation is completely remedied.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In combination with a trolley wire hanger, a cap-and-cone insulation in which the cap is provided with a locking-socket, and a latch loosely attached to the arm of the hanger and having its end adapted to engage the socket in the cap.

2. In combination with a trolley wire hanger, a cap-and-cone insulation, a threaded shank connecting said cap and cone, locking- 1ocking-socket in the cap-insulator, and means for locking said cap to the hanger 10 against rotation.

JOHN W. HAYNES.

Witnesses:

CHAS. L. BURDETT, ARTHUR B. JENKINS. 

